Sigma Service Disruption Due to Cloudflare Incident

Incident Report for Sigma Computing

Resolved

At 08:56 UTC Cloudflare's scheduled maintenance to their Web Application Firewalls failed and an incident was declared. At 09:12 UTC a fix was deployed and traffic was restored.

Sigma's service was impacted by this incident, as this did not allow traffic to reach our servers.

Our internal monitoring matches the incident timeline and indicated that customers may have experienced failures when using our services during this brief incident.

Posted Dec 05, 2025 - 09:00 UTC